Data

An integrated stock assessment for the Heard Island and the McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery in CCAMLR Division 58.5.2

Australian Ocean Data Network
Ziegler, P. ; ZIEGLER, PHILIPPE
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=http://catalogue-aodn.prod.aodn.org.au/geonetwork/srv/eng/search?uuid=AAS_4030_ToothfishAssessment&rft.title=An integrated stock assessment for the Heard Island and the McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery in CCAMLR Division 58.5.2&rft.identifier=http://catalogue-aodn.prod.aodn.org.au/geonetwork/srv/eng/search?uuid=AAS_4030_ToothfishAssessment&rft.publisher=Australian Antarctic Data Centre&rft.description=This integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) fishery at the Heard Island and the McDonald Islands in CCAMLR Division 58.5.2, with data until end of July 2015, is based on the best available estimates of model parameters, the use of abundance estimates from a random stratified trawl survey (RSTS), longline tag-release data from 2012-2014 and longline tag-recapture data from 2013-2015, and auxiliary commercial composition data to aid with the estimation of year class strength and selectivity functions of the trawl, longline and trap sub-fisheries.All model runs were conducted with CASAL version 2.30-2012-03-21 (Bull et al. 2012). The assessment model leads to an MCMC estimate of the virgin spawning stock biomass B0 = 87 077 tonnes (95% CI: 78 500-97 547 tonnes). Estimated SSB status in 2015 was 0.64 (95% CI: 0.59-0.69). Using this model, a catch limit of 3405 tonnes satisfies the CCAMLR decision rules. Similarly to the 2014 assessment, the projected stock remains above the target level for the entire projection period.Progress Code: completedStatement: This assessment model is based on the best available data and estimates of model parameters.&rft.creator=Ziegler, P. &rft.creator=ZIEGLER, PHILIPPE &rft.date=2016&rft.coverage=westlimit=73.56445; southlimit=-53.10722; eastlimit=73.56445; northlimit=-53.10722&rft.coverage=westlimit=73.56445; southlimit=-53.10722; eastlimit=73.56445; northlimit=-53.10722&rft.coverage=uplimit=2500; downlimit=0&rft.coverage=uplimit=2500; downlimit=0&rft_rights=This metadata record is publicly available.&rft_rights=The data set is commercial in-confidence.&rft_rights= https://creativecommons.org/licenses/by/4.0/legalcode&rft_rights=The results of the stock assessment are available in the CCAMLR Fishery Report for Division 58.5.2 at: https://www.ccamlr.org/en/fisheries/toothfish-fisheries This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4030_ToothfishAssessment when using these data. http://creativecommons.org/licenses/by/4.0/).&rft_rights=Portable Network Graphic&rft_rights=https://i.creativecommons.org/l/by/3.0/88x31.png&rft_rights=Creative Commons by Attribution logo&rft_rights=Attribution 4.0 International (CC BY 4.0)&rft_rights=Legal code for Creative Commons by Attribution 4.0 International license&rft_rights=Attribution 4.0 International (CC BY 4.0)&rft_rights= https://creativecommons.org/licenses/by/4.0/legalcode&rft.type=dataset&rft.language=English Access the data
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The results of the stock assessment are available in the CCAMLR Fishery Report for Division 58.5.2 at:
https://www.ccamlr.org/en/fisheries/toothfish-fisheries


This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/).

Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4030_ToothfishAssessment when using these data.
http://creativecommons.org/licenses/by/4.0/).

Attribution 4.0 International (CC BY 4.0)

https://creativecommons.org/licenses/by/4.0/legalcode

This metadata record is publicly available.

The data set is commercial in-confidence.

Portable Network Graphic

https://i.creativecommons.org/l/by/3.0/88x31.png

Creative Commons by Attribution logo

Attribution 4.0 International (CC BY 4.0)

Legal code for Creative Commons by Attribution 4.0 International license

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metadata@aad.gov.au

Brief description

This integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) fishery at the Heard Island and the McDonald Islands in CCAMLR Division 58.5.2, with data until end of July 2015, is based on the best available estimates of model parameters, the use of abundance estimates from a random stratified trawl survey (RSTS), longline tag-release data from 2012-2014 and longline tag-recapture data from 2013-2015, and auxiliary commercial composition data to aid with the estimation of year class strength and selectivity functions of the trawl, longline and trap sub-fisheries.All model runs were conducted with CASAL version 2.30-2012-03-21 (Bull et al. 2012).

The assessment model leads to an MCMC estimate of the virgin spawning stock biomass B0 = 87 077 tonnes (95% CI: 78 500-97 547 tonnes). Estimated SSB status in 2015 was 0.64 (95% CI: 0.59-0.69). Using this model, a catch limit of 3405 tonnes satisfies the CCAMLR decision rules. Similarly to the 2014 assessment, the projected stock remains above the target level for the entire projection period.

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Progress Code: completed
Statement: This assessment model is based on the best available data and estimates of model parameters.

Notes

Purpose
This stock assessment and its stock projections is used to provide advice to setting a catch limit for the Patagonian toothfish (Dissostichus eleginoides) fishery at the Heard Island and the McDonald Islands in CCAMLR Division 58.5.2.

Data time period: 1997-01-01 to 2015-11-30

73.56445,-53.10722

73.56445,-53.10722

text: westlimit=73.56445; southlimit=-53.10722; eastlimit=73.56445; northlimit=-53.10722

text: uplimit=2500; downlimit=0

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Other Information
Download the CCAMLR report from the CCAMLR website (VIEW RELATED INFORMATION > PUBLICATIONS)

uri : https://www.ccamlr.org/en/fisheries/toothfish-fisheries

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